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公开(公告)号：US20220070834A1
公开(公告)日：2022-03-03
申请号：US17367214
申请日：2021-07-02
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Mohammad Ali Tassoudji , Yu-Chin Ou , Kobi Ravid , Ozge Koymen , Junyi Li
Abstract: Methods, systems, and devices for wireless communications are described that support beam correlation across frequency bands for beam selection in the event of a frequency switch. For example, a base station may determine a configuration indicating a mapping between a set of beam identifiers (IDs) and a set of angle coverage ranges for a set of frequency ranges which corresponds to a user equipment's (UE) operating frequencies. In some examples, the UE may undergo a frequency switch and switch from a first operating frequency to a second operating frequency. The UE may select a beam ID based on the mapping and communicate with the base station via the second operating frequency using a beam associated with the selected beam ID.
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公开(公告)号：US11206075B2
公开(公告)日：2021-12-21
申请号：US16680338
申请日：2019-11-11
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Juergen Cezanne , Kobi Ravid , Jung Ho Ryu , Junyi Li
Abstract: Methods, systems, and devices for wireless communications are described. A communication device may perform a first set of beam measurements for a first plurality of beams over a wireless channel, each beam in the first plurality of beams having a first beam-width. The communication device may transmit a first beam measurement report for the first plurality of beams, the first beam measurement report indicating a beam sweep order for a second set of beam measurements for a second plurality of beams. The communication device may perform the second set of beam measurements for the second plurality of beams over the wireless channel according to the indicated beam sweep order, each beam in the second plurality of beams having a second beam-width that is narrower than the first beam-width.
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公开(公告)号：US20200186229A1
公开(公告)日：2020-06-11
申请号：US16680338
申请日：2019-11-11
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Juergen Cezanne , Kobi Ravid , Jung Ho Ryu , Junyi Li
Abstract: Methods, systems, and devices for wireless communications are described. A communication device may perform a first set of beam measurements for a first plurality of beams over a wireless channel, each beam in the first plurality of beams having a first beam-width. The communication device may transmit a first beam measurement report for the first plurality of beams, the first beam measurement report indicating a beam sweep order for a second set of beam measurements for a second plurality of beams. The communication device may perform the second set of beam measurements for the second plurality of beams over the wireless channel according to the indicated beam sweep order, each beam in the second plurality of beams having a second beam-width that is narrower than the first beam-width.
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公开(公告)号：US20200178182A1
公开(公告)日：2020-06-04
申请号：US16783053
申请日：2020-02-05
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Mohammad Ali Tassoudji , Kobi Ravid , Yu-Chin Ou , Ozge Koymen , Junyi Li
Abstract: Wireless communications systems and methods related to mitigation of calibration errors are provided. A base station (BS) transmits, via an antenna array including a plurality of antenna elements, a first communication signal using a first number of the plurality of antenna elements and a first transmission power level to a user equipment (UE). The BS receives from at least one UE, a measurement report based on the first communication signal. The BS transmitting a second communication signal using a second number of the plurality of antenna elements and a second transmission power level based on the one or more measurement reports. At least one of the first number of the plurality of antenna elements is different from the second number of the plurality of antenna elements, or the first transmission power level is different from the second transmission power level. Other aspects and features are also claimed and described.
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公开(公告)号：US20200100191A1
公开(公告)日：2020-03-26
申请号：US16138880
申请日：2018-09-21
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Mohammad Ali Tassoudji , Kobi Ravid , Yu-Chin Ou , Ozge Koymen , Junyi Li
Abstract: Wireless communications systems and methods related to mitigation of calibration errors are provided. A base station (BS) transmits, via an antenna array including a plurality of antenna elements, a first communication signal using a first number of the plurality of antenna elements and a first transmission power level to a user equipment (UE). The BS receives from at least one UE, a measurement report based on the first communication signal. The BS transmitting a second communication signal using a second number of the plurality of antenna elements and a second transmission power level based on the one or more measurement reports. At least one of the first number of the plurality of antenna elements is different from the second number of the plurality of antenna elements, or the first transmission power level is different from the second transmission power level. Other aspects and features are also claimed and described.
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Patent Agency Ranking
公开(公告)号：US12237893B2
公开(公告)日：2025-02-25
申请号：US17865776
申请日：2022-07-15
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Mohammad Ali Tassoudji , Kobi Ravid , Yu-Chin Ou , Ozge Koymen , Junyi Li
IPC: H04B7/0456 , H04B7/06 , H04L5/00
Abstract: Methods, systems, and devices for wireless communications are described. A codebook adaptation may be performed for a flexible user equipment (UEs) to determine a codebook for a physical configuration of the UE. For example, if the UE determines that the physical configuration does not correspond to a pre-loaded codebook in its memory, the UE may provide information about the physical configuration to a base station to determine a corresponding codebook. Additionally, the UE may request that the base station provide channel information to assist with the codebook determination. In some cases, this request may indicate for the base station to allocate a specific number of channel state information reference signal symbols that the UE can use for the codebook determination. Additionally or alternatively, the UE may generate the codebook internally and then signal to the base station a request for a beam refinement procedure with the generated codebook.
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公开(公告)号：US12114272B2
公开(公告)日：2024-10-08
申请号：US17647727
申请日：2022-01-11
Applicant: QUALCOMM Incorporated
Inventor： Jung Ho Ryu , Sony Akkarakaran , Tao Luo , Junyi Li , Xiaojie Wang , Wooseok Nam , Yan Zhou , Peter Gaal , Juan Montojo , Piyush Gupta , Xiaoxia Zhang , Hua Wang , Kobi Ravid , Lik Hang Silas Fong , Chih-Hao Liu , Jing Sun
Abstract: Certain aspects of the present disclosure provide techniques for wireless communications by a user equipment (UE) includes transmitting, in a first symbol in time of a slot, an automatic gain control (AGC) signal, wherein the UE transmits the AGC signal at a first power over a first frequency bandwidth; and transmitting, in a plurality of symbols of a mini-slot of the slot, a second AGC signal and data, wherein the UE refrains from transmitting between the first symbol and the plurality of symbols.
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公开(公告)号：US20240243788A1
公开(公告)日：2024-07-18
申请号：US18153933
申请日：2023-01-12
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Kobi Ravid , Junyi Li
CPC classification number: H04B7/0617 , H04L5/0051
Abstract: This disclosure provides systems, methods, and devices for wireless communications that support phase and gain adjustments in beamforming for millimeter wave operation. In a first aspect, a method for wireless communications includes applying a calibration gain value to beamforming for a plurality of antennas; determining a plurality of phase calibration values corresponding to the plurality of antennas while beamforming at the calibration gain value; and determining a first plurality of gain calibration values corresponding to the plurality of antennas while beamforming using the plurality of phase calibration values. Other aspects and features are also claimed and described.
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公开(公告)号：US20230006721A1
公开(公告)日：2023-01-05
申请号：US17865776
申请日：2022-07-15
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Mohammad Ali Tassoudji , Kobi Ravid , Yu-Chin Ou , Ozge Koymen , Junyi Li
IPC: H04B7/0456 , H04B7/06 , H04L5/00
Abstract: Methods, systems, and devices for wireless communications are described. A codebook adaptation may be performed for a flexible user equipment (UEs) to determine a codebook for a physical configuration of the UE. For example, if the UE determines that the physical configuration does not correspond to a pre-loaded codebook in its memory, the UE may provide information about the physical configuration to a base station to determine a corresponding codebook. Additionally, the UE may request that the base station provide channel information to assist with the codebook determination. In some cases, this request may indicate for the base station to allocate a specific number of channel state information reference signal symbols that the UE can use for the codebook determination. Additionally or alternatively, the UE may generate the codebook internally and then signal to the base station a request for a beam refinement procedure with the generated codebook.
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20.发明授权公开(公告)号：US11522581B2
公开(公告)日：2022-12-06
申请号：US17186580
申请日：2021-02-26
Applicant: QUALCOMM Incorporated
Inventor： Vasanthan Raghavan , Tao Luo , Mohammad Ali Tassoudji , Yu-Chin Ou , Kobi Ravid , Ozge Koymen , Junyi Li
IPC: H04B7/0413 , H04W16/28
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, and a base station may receive, information related to multipath richness of a channel environment and information related to antenna module capabilities associated with the UE for at least a first frequency band and a second frequency band. The base station may transmit, and the UE may receive, information indicating a multiple input multiple output (MIMO) mode in which to operate one or more antenna modules of the UE based at least in part on the information related to the multipath richness of the channel environment, the antenna module capabilities associated with the UE, and respective cell loadings in the first frequency band and the second frequency band. Numerous other aspects are provided.
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